It was a Sock Gnome.
The Sock Gnome explained that it was part of a secret society of sock enthusiasts who roamed the world at night, collecting and trading socks. Mr. Fancypants was both amazed and annoyed. "Why did you take my socks?" he demanded. Roald Dahl The Hitchhiker Pdf
Mr. Fancypants was a peculiar fellow. He lived in a tiny flat above the local bakery, where the most heavenly aromas wafted through his windows every morning. But Mr. Fancypants wasn't a baker; he was a collector. A collector of socks. It was a Sock Gnome
From that day on, Mr. Fancypants and the Sock Gnomes became great friends. They would have sock puppet shows every month, and Mr. Fancypants would provide the socks. The baker, Mrs. Whiskers, would even donate her extra flour to create a special Sock Gnome-sized snack: Sock-shaped cookies. Fancypants was both amazed and annoyed
And so, under the light of the full moon, Mr. Fancypants attended the most unforgettable sock puppet show he had ever seen. There were sock puppets of dragons, princesses, and even a giant, talking eggplant. The Sock Gnomes were overjoyed to have Mr. Fancypants as their guest, and he, in turn, was thrilled to have his socks back – or, at least, most of them.
Determined to solve the mystery, Mr. Fancypants set up a trap. He placed a particularly enticing pair of socks with yellow toes and red heels in a cardboard box, attached a tiny alarm, and waited.